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Design for an Insect-Exterminator.

Description: Design patent for an insect-exterminator that consists of a circular pan and a conical lamp-body arranged centrally within the pan and projecting above the plane thereof.
Date: April 11, 1899
Creator: Hightower, Elijah H.
Partner: UNT Libraries Government Documents Department

Improved Bridge.

Description: Patent for an invention that "is to provide certain improvements in the construction of bridges, whereby the parts thereof, of wood, may be readily removed for the substitution of others, when decayed or broken, without interfering with the use of the bridge or weakening it (lines 10-15)". The patent includes instructions and illustrations.
Date: January 11, 1870
Creator: McDowell, H. S.
Partner: UNT Libraries Government Documents Department

Improvement in Cotton-Sprinklers

Description: Patent for Improvements to cotton-sprinklers that provides "effective distribution of poisonous liquids upon cotton-plants, for the purpose of destroying the cotton-worm or other destructive insects." (lines 15-18) Includes instructions and illustration.
Date: November 11, 1879
Creator: Schier, John
Partner: UNT Libraries Government Documents Department